Crosscut-sawing machine



UNITED sTATEs PATENT oEEIoE.

H. H. POTTER, OF CARTHAGE, NEW YORK.

CROSSCUT-SAWING MACHINE.

Specification of Letters Patent No. 19,870, dated April 6, 1858.

To all whom it may concern:

Be it known that I, H. H. POTTER, of Carthage, in the county ofJefferson and State of New York, have invented a new and ImprovedMachine for Sawin Logs Transversely into Cord or Fire ood; and I dohereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, in which- Figure l is a sideelevation of my improvement. Fig. 2 is a plan or top view of ditto.

Similar letters of reference indicate corresponding parts in the twofigures.

The object of this invention is to obtain a simple and economical devicefor sawing logs transversely into suitable lengths for firewood, onethat can be operated manually with a moderate expenditure of power,readily adjusted to the log and easily manipulated generally.

To enable those skilled in the art to fully understand and construct myinvention I will proceed to describe it.

A, represents a bar or beam provided at one end with a cross bar a., andhaving two uprights B, attached to it. Between the upper ends of the twouprights B, a bent. lever C, is hung, 2),'being the fulcrum. The upperarm c, of this lever is the handle, and the lower arm (Z, is pivoted toone end of a horizontal bar D, as shown at c. To the opposite end of thebar D, a saw E, is attached. The bar I), works through a guide f, andfriction roller g, which is fitted therein bears on the upper side ofthe bar-D. The upper end of the guide f, is attached to one end of alever F, which works on a fulcrum pin 71 in an upright i, attached tothe bar or beam A. The opposite end of this ylever is pivoted as shownat a', to a lever G, which works on a fulcrum pin j, in an upright In,also attached to the bar or beam A.

To the inner end of the lever Gr, a treadle H, is attached, and a rackZ, is also attached to the inner end of the treadle, by a pivot m. Thisrack has a spring n, bearing against its back side, said spring keepingthe rack engaged with a pin 0, which is attached to one side of the baror beam A, see Fig. l.

The operation is as follows: The front end of the bar or beam A, isplaced on the log` I, to be sawed, the log being on the ground, and theopposite end of the bar or beam also resting on the ground. The operatorstands on a platform g, on the bar or beam, and with his right handoperates the lever C, oscillating the same and thereby communicating areciprocating movement to the saw E, which works transversely on the logI. The saw is fed to its work by the operator who presses his foot ontreadle H, and

thereby, through the madium of levers F, G,

.forces the roller g, down on the bar D, the rack Z, preventing thelever G, from casually rising. When one cut is made the operator raisesthe front end of the bar or beam, places it again on the log at theproper point for a succeeding cut and the operation is repeated. l

I do'not claim separately any o-f the parts herein described; but,

I claim as new and desire to secure by Letters Patent,

Operating the saw E, by means of the bent lever C, arrangedsubstantially asA shown, in connection with the feeding device formed ofthe levers F, G, and guide f, the whole being combined and arranged tooperate conjointly as and for the purpose set forth.

HENRY H. POTTER.

Witnesses:

' PITT MATHEWS,

GEORGEl T, WILMOT,

